I'm running a new set of 35" MTR/Kevlar on 15x8 steelies. Used 10 ounces of Airsoft to balance them (same ones I had in my 35" KM2s). They were fine until I rotated the tires and I got a wobble at 40 mph. Not full on death wobble but definitely on the way there. There is no play in the front end with steering or track bar. Would adding some more BBs in the tires cause any problems to see if it fixes the issue?

Air soft bb's aren't dense enough to make great balancing media. Try about 10oz of steel bb's. That's what I run.

"Axeheads are supposed to be sharp, but you are one blunt tool."
FLynes

If you love wealth more than liberty,the tranquility of servitude more than the animating contest of freedom, go home from us in peace. We seek not your counsel nor your arms. Crouch down and lick the hand that feeds you. May your chains sit lightly on your shoulders and may posterity forget that you were our countrymen.
-Samual Adams

A government big enough to give you everything you want is big enough to take everything you have.
Thomas Jefferson

"Your right, the Tea Party and the OWS are the same, just like the America Revolution and the French Revolution were the same. The only problem is the American Revolution ended with Liberty, Freedom, Justice for all and a shining light upon a hill. The French Revolution ended with lynchings, guillotines, murder and socialism. So yeah, I could see how one could confuse the two..."
Mac Wilson